Which guns do you use and why?

Early game drops dictate what I use for the rest of the game. If I find a Wingman / P2020 / G7 / Mozam as first weapon then I'll swap to whatever I pick up next. I like the variety and unpredictability of seeing what kind of weapons I'll have to play with while not switching up my play style. It doesn't always work, but it's pretty fun.